diff --git a/README.md b/README.md
index d28a54e..4286330 100644
--- a/README.md
+++ b/README.md
@@ -93,8 +93,9 @@ The following code has been tested with Debian 8, it should work on Ubuntu as we
 * `gitea_root_url`: Root URL used to access your web app (full URL)
 * `gitea_protocol`: Listening protocol (http/https)
 * `gitea_http_listen`: Bind address
-* `gitea_http_port`: Bind port
+* `gitea_http_port`: Bind port (redirect from `80` will be activated if value is `443` - Default: `3000`)
 * `gitea_disable_http_git`: Disable the use of Git over HTTP ? (true/false)
+* `gitea_http_letsencrypt_mail` Enable Let`s Encrypt if a email address is given
 
 ### SSH configuration
 
diff --git a/defaults/main.yml b/defaults/main.yml
index b2f00b4..c35b4d9 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -20,6 +20,7 @@ gitea_root_url: http://localhost:3000
 gitea_protocol: http
 gitea_http_listen: 127.0.0.1
 gitea_http_port: 3000
+# gitea_http_letsencrypt_mail:  - required
 gitea_disable_http_git: false
 gitea_offline_mode: true
 
diff --git a/templates/gitea.ini.j2 b/templates/gitea.ini.j2
index 11e06c0..a10939d 100644
--- a/templates/gitea.ini.j2
+++ b/templates/gitea.ini.j2
@@ -35,8 +35,16 @@ PROTOCOL         = {{ gitea_protocol }}
 DOMAIN           = {{ gitea_http_domain }}
 ROOT_URL         = {{ gitea_root_url }}
 ; The address to listen on. Either a IPv4/IPv6 address or the path to a unix socket.
-HTTP_ADDR        = {{ gitea_http_listen }}
-HTTP_PORT        = {{ gitea_http_port }}
+HTTP_ADDR             = {{ gitea_http_listen }}
+HTTP_PORT             = {{ gitea_http_port }}
+{% if gitea_http_port == 443 %}
+PORT_TO_REDIRECT      = 80
+{% endif %}
+{% if gitea_http_letsencrypt_mail is defined %}
+ENABLE_LETSENCRYPT    = true
+LETSENCRYPT_ACCEPTTOS = true
+LETSENCRYPT_EMAIL     = {{ gitea_http_letsencrypt_mail }}
+{% endif %}
 ; Disable SSH feature when not available
 DISABLE_SSH      = false
 ; Whether to use the builtin SSH server or not.